package com.FileIo;

import javax.xml.soap.Text;
import java.io.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.TreeSet;

/**
 * @author 13699
 */
public class TextFile extends ArrayList<String> {
    public static String read(String fileName){
        StringBuilder sb=new StringBuilder();
        try{
            BufferedReader in=new BufferedReader(new FileReader(
                    new File(fileName).getAbsoluteFile()));
            try {
                String s;
                while ((s=in.readLine())!=null){
                    sb.append(s);
                    sb.append("\n");
                }
            }finally {
                in.close();
            }
        }catch (IOException e){
            throw new RuntimeException(e);
        }
        return sb.toString();
    }
    public static void write(String fileName,String text){
        try {
            PrintWriter out=new PrintWriter(new File(fileName).getAbsoluteFile());
            try {
                out.print(text);
            }finally {
                out.close();
            }
        }catch (IOException e){
            throw new RuntimeException(e);
        }
    }
    public TextFile(String fileName,String splitter){
        super(Arrays.asList(read(fileName).split(splitter)));
        if(get(0).equals("")){
            remove(0);
        }
    }
    public TextFile(String fileName){
        this(fileName,"\n");
    }
    public void write(String fileName){
        try{
            PrintWriter out=new PrintWriter(
                    new File(fileName).getAbsoluteFile());
            try{
                for (String item:
                     this) {
                    out.println(item);
                }
            }finally {
                out.close();
            }
        }catch (IOException e){
            throw new RuntimeException(e);
        }
    }

    public static void main(String[] args) {
        String file=read("TextFile.java");
        write("test.txt",file);
        TextFile text=new TextFile("text.txt");
        text.write("text2.txt");
        TreeSet<String> words=new TreeSet<>(new TextFile("TextFile.java","\\W+"));
        System.out.println(words.headSet("a"));
    }
}
